That's useful only if you plan to modify gdiplus or VC runtime files on your system.
You see, with side-by-side assemblies you have to use MS catalogs otherwise the public key token won't be correct during assembly installation.

The sx2.dll is a patched sxs.dll that is called by the package installer (update.exe) to skip catalog and hash checking and install the modified dll file along with the modified manifest and MS catalog file.

Dibya, I may have to try this, sounds interesting! I play Unreal Tournament Classic, aka:UT99, which does have a D3d10 update, so if I can get Dx10 to work, and then use the wrapper, might be interesting to see what happens!

There ware a problems with installing it on system updated till August, 2012 (syspreped machine) - after executing the .exe popup report error with update.inf.
Successfully installed on Harkaz's SP4 ISO, but DXDIAG does not working anymore.

@harkaz Well,cannot exactly say that, all-ready a happy camper on a new install(sp4+16-secuppdates).

when auto-logon, os popup (cannot start logon sfc_os.dll is missing)
did try to replace a copy from i386 folder, didnt work.
the screen was black in safe-mode,but you could see the safe-mode text in the corners
and you could see the mouse cursor,nothing else did not work.

better to put this error to Pending-bin, if others have this maybe then
there is a reason to spend some time=money on it.

"Apply the patches in patches-v3.1a.zip selectively: The files inside the OC-PATCHES subfolders will change the default installation state of each respective component in slipstreamed install. The files in 4GB_PATCH directory will add support for 4GB+ RAM. You just need to copy-paste the files in a SP4v3-slipstremed installation disk and reinstall Windows."

Hello! first of all, thanks for this sp4 and the hard work you invested on it.
Now one question: after install, and read some posts here, i dont know why i dont have/cant install/cant run office 2007, even if i download it from microsoft it says is already installed, so im a bit confused, plus this is new to me. My original language is spanish, but i changed it all to english like in the page 34, so i could install this SP4. It all installed succesfully but.. What i need to do to run/install office 2007?; sorry that my first post is asking for help but i dont really know what to do. Thanks for your time

Forgot to mention that i also cant use search, have missing .dll, ill try to post screens as soon as possible. Another edit: i didnt download the mui pack posted in page 34, having trouble with it because 1gb ram only